Ch 15

Question 1

What is the Autonomic Nervous System?

Answer 1

A system of motor neurons

Question 2

What does the ANS innervate?

Answer 2

Smooth muscle

Cardiac muscle

Glands

Question 3

Which visceral internal organs does the ANS regulate?

Answer 3

Heart Rate

Blood Pressure

Digestion

Urination

Question 4

What is the viseral motor division of the PNS>

Answer 4

The ANS

Question 5

Which is faster, the somatic motor system or the ANS?

Answer 5

Somatic motor system

Question 6

Denervation in the SMS causes what?

Answer 6

Flacidy or atrophy

Question 7

Denervation in the ANS causes what?

Answer 7

Hypersensitivity

Question 8

The sympathetic and parasympathetic divisions innervate the same or different structures?

Answer 8

Same

Question 9

When is the sympathetic division activated?

Answer 9

Fight or flight

Extreme situations

Question 10

When is the parasympathetic division activated?

Answer 10

Rest and digest

Conservation of energy

Question 11

What is the spinal origins of the sympathetic and parasympathetic divisions?

Answer 11

Sym: Thoracolumbar T1-L2

Parasym: Craniospinal

Question 12

Where are the sympathetic and parasympathetic ganglia located?

Answer 12

Sym: ganglia near spinal column

Parasym: ganglia near target organ

Question 13

What is the relative length of the sym/parasym postganglionic fibers?

Answer 13

Sym: Long

Parasym: short

Question 14

What is the relative branching of the sym/parasym fibers?

Answer 14

Sym: highly branched to release norepinephrine

Parasym: few branches

Question 15

What are the two parasympathetic division outflows?

Answer 15

Craninal and sacral

Question 16

Write out chart of sym/parasym differenced, including: Sym Parasym

Origin

Location of ganglia

Length of pre- and post-ganglionic fibers

Rami communicatess

Degree of branching

Functional role

Neurotransmitters

Answer 16

Question 17

What is the lateral gray horn?

Answer 17

On spinal cord

Question 18

Does the sym or parasym contain more ganglia?

Answer 18

Sym

Question 19

Which organs receive only sym innervation?

Answer 19

Sweat glands

Arrector pili muscles

Peripheral blood vescles

Question 20

Write out table of effects of Para and Sym on organs

Answer 20

Question 21

What does the adrenal medulla do?

Answer 21

Largest organ in the sym system

Secretes norephinephrine and adrelaline

Stimulated by preganglionic sym fibers

Question 22

What do visceral sensory neurons do?

Answer 22

Stretch, temperature, chem changes

Question 23

Where are the visceral sensory neuron cell bodies located?

Answer 23

Dorsal root ganglion

Question 24

Visceral pain is perceived to be what?

Answer 24

Somatic pain in origin, superficial areas of body Referred pain

Question 25

Study Visceral Reflex Arc

Answer 25

Question 26

Visceral sensory and autonomic neurons are involved in which two fundamental bodily arcs?

Answer 26

Defecation Micturiation

Question 27

What is referred pain?

Answer 27

Visceral pain felt at a somatic site other than where the cause is situated.

Question 28

Which way does visceral pain get to the CNS?

Answer 28

Sympathetic neurons

Question 29

Which axons are more branched sym or parasym?

Answer 29

Sympathetic

Question 30

Sketch out the Sympathetic and Parasympathetic chart

Answer 30

Question 31

Sketch out the sym & para anatomical differences

Answer 31